Controlled Synthesis of FeSe2 Nanoflakes Toward Advanced Sodium Storage Behavior Integrated with Ether-Based Electrolyte

Sodium ion batteries based on the more sodium source reserve than that of lithium have been designed as promising alternatives to lithium ion batteries. However, several problems including unsatisfied specific capacity and serious cyclic stability must be solved before the reality. One of the effective approaches to solve the abovementioned problems is to search for suitable anode materials. In this work, we designed and prepared FeSe2 nanoflakes via a simple hydrothermal method which can be adjusted in composition by Fe precursor. As a potential anode for sodium storage, the optimized FeSe2 electrode was further evaluated in different electrolytes of NaClO4 in propylene carbonate/fluoroethylene carbonate and NaCF3SO3 in diethylene glycol dimethyl ether. The capacity was about 470[Formula: see text]mAh[Formula: see text]g[Formula: see text] and 535[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 0.5[Formula: see text]A[Formula: see text]g[Formula: see text], respectively, in the voltage between 0.5[Formula: see text]V and 2.9[Formula: see text]V in the cycle of stabilization phase. Superior performance both in capacity and in stability was obtained in ether-based electrolyte, which affords the property without plugging the intermediates of transition metal dichalcogenides during charge/discharge processes.

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Phase-transfer-assisted confinement growth of mesoporous MoS2@graphene van der Waals supraparticles for unprecedented ultrahigh-rate sodium storage

Journal of Materials Chemistry A ◽

10.1039/d1ta00715g ◽

2021 ◽

Author(s):

Wenqian Han ◽

Guannan Guo ◽

Yan Xia ◽

Jing Ning ◽

Yuwei Deng ◽

...

Keyword(s):

Transition Metal ◽

Anode Materials ◽

Phase Transfer ◽

Transition Metal Dichalcogenides ◽

Rate Capability ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Metal Dichalcogenides ◽

Sodium Storage ◽

Low Rate

Transition metal dichalcogenides (TMDs) are promising anode materials for sodium-ion batteries (SIBs), but suffer from low rate capability and poor cycling stability. Here, we describe our efforts in designing a...

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W2C/WS2 Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage

Nanomaterials ◽

10.3390/nano10071336 ◽

2020 ◽

Vol 10 (7) ◽

pp. 1336 ◽

Cited By ~ 2

Author(s):

Thang Phan Nguyen ◽

Il Tae Kim

Keyword(s):

Electrochemical Performance ◽

Anode Materials ◽

Transition Metal Dichalcogenides ◽

Lithium Ion ◽

Reversible Capacity ◽

Facile Hydrothermal Method ◽

Initial Discharge ◽

Ion Storage ◽

Metal Dichalcogenides ◽

Prepared Alloy

Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W2C/WS2 alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W2C in the WS2 NFs improved their electronic properties. Among them, the W2C/WS2_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g−1 and excellent cyclability corresponding to a reversible capacity of 500 mAh g−1 after 100 cycles compared to that of the pure WS2 NF electrode. Therefore, the incorporation of W2C is a promising approach to improve the performance of LIB anode materials.

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Selective Phosphorization Boosting High-Performance NiO/Ni2Co4P3 Microspheres as Anode Materials for Lithium Ion Batteries

Materials ◽

10.3390/ma14010024 ◽

2020 ◽

Vol 14 (1) ◽

pp. 24

Author(s):

Ji Yan ◽

Xin-Bo Chang ◽

Xiao-Kai Ma ◽

Heng Wang ◽

Yong Zhang ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Anode Materials ◽

High Performance ◽

Electronic Conductivity ◽

Specific Capacity ◽

Lithium Ion ◽

Lithium Storage ◽

Ion Storage ◽

Storage Behavior ◽

Storage Properties

Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo2O4 to NiO/Ni2Co4P3 microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCo2O4 to intermediate NiO, hybrid NiO/Ni2Co4P3, and, finally, to Ni2Co4P3, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected. The optimized phosphorization with 1:3 reagent mass ratio can maintain the spherical architecture, hold hybrid crystal structure, and improve the reversibly electrochemical lithium-ion storage properties. A specific capacity of 415 mAh g−1 is achieved at 100 mA g−1 specific current and maintains at 106 mAh g−1 when the specific current increases to 5000 mA g−1. Even after 200 cycles at 500 mA g−1, the optimized electrode still delivers 224 mAh g−1 of specific capacity, exhibiting desirable cycling stability. We believe that understanding of such selective phosphorization can further evoke a particular research enthusiasm for anode materials in lithium ion battery with high performances.

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Engineering Nanostructured Antimony-Based Anode Materials for Sodium Ion Batteries

Coatings ◽

10.3390/coatings11101233 ◽

2021 ◽

Vol 11 (10) ◽

pp. 1233

Author(s):

Wen Luo ◽

Jingke Ren ◽

Wencong Feng ◽

Xingbao Chen ◽

Yinuo Yan ◽

...

Keyword(s):

Anode Materials ◽

High Performance ◽

Low Cost ◽

Specific Capacity ◽

Lithium Ion ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Storage Mechanism ◽

In Situ Investigation ◽

Sodium Storage

Sodium-ion batteries (SIBs) are considered a potential alternative to lithium-ion batteries (LIBs) for energy storage due to their low cost and the large abundance of sodium resources. The search for new anode materials for SIBs has become a vital approach to satisfying the ever-growing demands for better performance with higher energy/power densities, improved safety and a longer cycle life. Recently, antimony (Sb) has been extensively researched as a promising candidate due to its high specific capacity through an alloying/dealloying process. In this review article, we will focus on different categories of the emerging Sb based anode materials with distinct sodium storage mechanisms including Sb, two-dimensional antimonene and antimony chalcogenide (Sb2S3 and Sb2Se3). For each part, we emphasize that the novel construction of an advanced nanostructured anode with unique structures could effectively improve sodium storage properties. We also highlight that sodium storage capability can be enhanced through designing advanced nanocomposite materials containing Sb based materials and other carbonaceous modification or metal supports. Moreover, the recent advances in operando/in-situ investigation of its sodium storage mechanism are also summarized. By providing such a systematic probe, we aim to stress the significance of novel nanostructures and advanced compositing that would contribute to enhanced sodium storage performance, thus making Sb based materials as promising anodes for next-generation high-performance SIBs.

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Core–shell MoS2@graphene composite microspheres as stable anodes for Li-ion batteries

New Journal of Chemistry ◽

10.1039/c8nj01100a ◽

2018 ◽

Vol 42 (18) ◽

pp. 15340-15345 ◽

Cited By ~ 8

Author(s):

Haoliang Xue ◽

Jie Wang ◽

Shanshan Wang ◽

Sohail Muhammad ◽

Caihong Feng ◽

...

Keyword(s):

Anode Materials ◽

Transition Metal Dichalcogenides ◽

High Capacity ◽

Lithium Ion ◽

Li Ion Batteries ◽

Graphene Composite ◽

Composite Microspheres ◽

Metal Dichalcogenides ◽

Li Ion ◽

Battery Anode

High-capacity lithium-ion battery anode materials of transition metal dichalcogenides often suffer from large volume expansion during lithiation, which causes capacity decay.

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Mesoporous transition metal dichalcogenide ME2 (M = Mo, W; E = S, Se) with 2-D layered crystallinity as anode materials for lithium ion batteries

RSC Advances ◽

10.1039/c5ra19799f ◽

2016 ◽

Vol 6 (17) ◽

pp. 14253-14260 ◽

Cited By ~ 35

Author(s):

Yoon Yun Lee ◽

Gwi Ok Park ◽

Yun Seok Choi ◽

Jeong Kuk Shon ◽

Jeongbae Yoon ◽

...

Keyword(s):

Transition Metal ◽

Lithium Ion Batteries ◽

Anode Materials ◽

Transition Metal Dichalcogenides ◽

Lithium Ion ◽

Electrochemical Performances ◽

Transition Metal Dichalcogenide ◽

Lithium Storage ◽

Metal Dichalcogenides

Mesoporous transition metal dichalcogenides with 2D layered crystallinity, synthesized through a melting-infiltration assisted nano-replication, exhibit excellent electrochemical performances for lithium-storage.

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The Coralloid-carbon Material Based on Biomass as Promising Anode Material for Lithium and Sodium Storage

New Journal of Chemistry ◽

10.1039/d0nj01769h ◽

2021 ◽

Author(s):

Ziqiang Yu ◽

Zhiqiang Zhao ◽

Tingyue Peng

Keyword(s):

Lithium Ion Battery ◽

Anode Material ◽

Carbon Material ◽

Specific Capacity ◽

Lithium Ion ◽

High Specific Capacity ◽

Further Development ◽

Sodium Storage ◽

Cycling Life

Lithium ion battery (LIB), advantageous in high specific capacity, long cycling life and eco-friendly, has been widely used in many fields. The dwindling reserves, however, limit the further development. Sharing...

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The Effects of Power Levels/Time Periods for Sputtering Cobalt onto Carbon Nanotubes/Graphene Composites and Cobalt Annealed on the Characteristics of Anode Materials for Lithium-Ion Batteries

Journal of Nanomaterials ◽

10.1155/2018/9489042 ◽

2018 ◽

Vol 2018 ◽

pp. 1-11 ◽

Cited By ~ 1

Author(s):

Chuen-Chang Lin ◽

You-Lun Shen ◽

An-Na Wu

Keyword(s):

Carbon Nanotubes ◽

Cobalt Oxide ◽

Anode Materials ◽

Specific Capacity ◽

Rf Sputtering ◽

Lithium Ion ◽

Chemical Vapor ◽

Electrochemical Stability ◽

Time Period ◽

Time Periods

Carbon nanotubes/graphene composites are directly grown on nickel foil without additional catalysts by chemical vapor deposition (CVD). Next, the cobalt is deposited on carbon nanotubes/graphene composites by radio frequency (RF) sputtering with different power levels and time periods. Then, the cobalt is transformed into cobalt oxide by annealing. A longer time period of sputtering leads to higher specific capacity. Furthermore, the electrochemical stability of cobalt oxide/carbon nanotubes/graphene composites is higher than that of cobalt oxide.

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Cu2O Nanoparticles and Multi-Branched Nanowires as Anodes for Lithium-Ion Batteries

NANO ◽

10.1142/s1793292018501035 ◽

2018 ◽

Vol 13 (09) ◽

pp. 1850103 ◽

Cited By ~ 3

Author(s):

Xu Chen ◽

Chunxin Yu ◽

Xiaojiao Guo ◽

Qinsong Bi ◽

Muhammad Sajjad ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Anode Materials ◽

Hydrothermal Process ◽

Specific Capacity ◽

Lithium Ion ◽

Discharge Process ◽

Electrochemical Cycling ◽

One Step ◽

Cu2o Nanoparticles ◽

Enhanced Electrochemical Performance

Novelty Cu2O multi-branched nanowires and nanoparticles with size ranging from [Formula: see text]15[Formula: see text]nm to [Formula: see text]60[Formula: see text]nm have been synthesized by one-step hydrothermal process. These Cu2O nanostructures when used as anode materials for lithium-ion batteries exhibit the excellent electrochemical cycling stability and reduced polarization during the repeated charge/discharge process. The specific capacity of the Cu2O nanoparticles, multi-branched nanowires and microscale are maintained at 201.2[Formula: see text]mAh/g, 259.6[Formula: see text]mAh/g and 127.4[Formula: see text]mAh/g, respectively, under the current density of 0.1[Formula: see text]A/g after 50 cycles. The enhanced electrochemical performance of the Cu2O nanostructures compared with microscale counterpart can be attributed to the larger contact area between active Cu2O nanostructures/electrolyte interface, shorter diffusion length of Li[Formula: see text] within nanostructures and the improved stress release upon lithiation/delithiation.

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